Manufacture of phosphorus.



UNITED STATES PA'IENT QFFICE.

HIATBLRIY 01111111 7 'HIC'KMAN WENEEANI G HISHOPS CASTLE ENGLAND.

E'G'ANUFACTURE OF PIFIU'BPHORUS.

Ho Drawing.

To all whom it may roman-n Be it known that l, Hinze; OELANDU HIGKMAN W'ENMAN, whim-L of the Kin of Great Britain. residing at .lfli'lm Castle. in the county of ulo y llnglnml ave invented a new and useful lnqn-ore ieni in the Manufacture of i."liu7-3pluu:us; and l I hereby declare the following to he i! in clear, and exact ilusrrintion of H1: seine.

My invention minprises iluproi'mneuth in the manufacture of phosphoum Hitherto il has been lho Mimi-Hon pm tie" to iuanui'riciure lilumpllallilr hv icluiigiug (he Phosphates Q- Ml r wit: ri'llimi :uul carbon info a gat iii ht furnace, "he hole being then heated i-levtrirnllv in u tempera ture of from 1,300 to L500 ilegrees ventigrnclu. The i'wllon lug reinm flirn iii-mire:

The phosphates are usually in 1hr form of bone ash, 111v]: lioeplmtos or basic slag and are charged cohl which involves the utilization of very connirlm'able heat.

The ohjw-l of the present iuwution iv; to cheapen the preparation of ph-mpiorm aw? in accordance therewith l u'ilizo unei slug Epecifloat'ion of Letters Fatent Application filed Becember 1917.

Patented. Aug. 15, 1918.

Serial E10. 5505.992.

in u molten state din-vi from the steel furnace.

The molten slug my be rented in an electrixully heated furnmre in the some manner llf" who slag: iho heal required for reheating .i will with esiiinels-il saving of quite 90% of she ourrent unal u :siili greater saving in like we? uf prmlne-Eimi. A lower grade of king may also he used i iml' E Ildilil then is:

1. in lin nmnniaemm of phosphorus, (roil ng molten slag in sili j'zufo and uurhon in an lfln lll'lt' Furnace *3 in the n'mnnfavture of plHJSPllUl'llS, running rnolfen slag direct. from a steel furnace into an electric furnace, supplying silicate and carbon 10 the electric furnace, and maintaining the furnace at thelemperature required to vaporize the phosphorus.

2% 1n the manufacture of phosphorus, supplying silicate to an electric furnace, running molten slag direct from a steel fur new into said electric furnace and introducing carbon into said electric furnace.

lu lestimony whereof I have signed my name in this specification HARRY ORLANDO HIUKMAN WENMAN. 

